This course summarizes the motivations and requirements for camera control, presents an overview of the state of the art, and examines promising avenues and hot topics for future research. It classifies the various te...
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ISBN:
(纸本)9781450379311
This course summarizes the motivations and requirements for camera control, presents an overview of the state of the art, and examines promising avenues and hot topics for future research. It classifies the various techniques and identifies the representational limits and commitments of each. Approaches range from completely interactivetechniques based on the possible mappings between a user's input and the camera parameters to completely automated paradigms in which the camera moves and jumps according to high-level, scenario-oriented goals. Between these extremes lie approaches with more limited expressiveness that use a range of algebraic and constraint-based optimization techniques. The course includes a number of live examples from both commercial systems and research prototypes, and it emphasizes the tough issues facing application developers, such as real-time handling of visibility for complex multiple targets in dynamic environments (multi-object tracking).
A user's mental model of a system should be an important determinant of performance and as well as a means of understanding why particular user errors occur. In particular, experienced users' models should be ...
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ISBN:
(纸本)0897912136
A user's mental model of a system should be an important determinant of performance and as well as a means of understanding why particular user errors occur. In particular, experienced users' models should be in closer agreement with the system than less experienced users' models, and deviations of expert models from the system should correspond to difficulties in performance and suggest ways that system usability could be improved. The present study explored the utility of scaling techniques for defining and comparing user and system models. The results support the assertion that with experience users' mental models approach the system model. However, even experienced users had significant deviations from the system model, leading to predictions of where experts would have difficulty using the system and suggestions for improving usability.
NIRVANA is a three-dimensional computer-generated film. Scenes have been produced using MIRANIM, an extensible directed-oriented animation system. As NIRVANA is a fictitious film, complex decors were built including a...
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ISBN:
(纸本)0818606215
NIRVANA is a three-dimensional computer-generated film. Scenes have been produced using MIRANIM, an extensible directed-oriented animation system. As NIRVANA is a fictitious film, complex decors were built including a Japanese pagoda, trees, a statue of Buddha, mountains, and other different objects. The authors discuss the different techniques involved in the construction of these decors with MIRANIM. Animated objects, called actors, are presented by means of two examples.
The proceedings contain 18 papers. The topics discussed include: model based full body human motion reconstruction from video data;high detail flexible viewpoint facial video from monocular input using static geometri...
ISBN:
(纸本)9781450320238
The proceedings contain 18 papers. The topics discussed include: model based full body human motion reconstruction from video data;high detail flexible viewpoint facial video from monocular input using static geometric proxies;estimating human motion from multiple kinect sensors;real-time monocular people tracking by sequential Monte-Carlo filtering;check my chart: a robust color chart tracker for colorimetric camera calibration;color matching for stereoscopic cinema;color invariant feature matching for image geometric correction;tomographic reconstruction from fewer projections;surface reconstruction using 3D morphological operators for objects acquired with a multi-kinect system;enhanced local binary covariance matrices (ELBCM) for texture analysis and object;free-viewpoint video rendering for mobile devices;and 3D graphics compression and rendering framework.
This paper develops techniques for generating and using mathematical models applicable to architectural evaluation of the tradeoffs involved in designing self-repairing highly reliable computers for long missions. The...
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This compendium of 256 references cover the following areas: man-machine interaction, graphical representation of data, data structures, data base searching and retrieval, computer aided design, graphic control system...
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This compendium of 256 references cover the following areas: man-machine interaction, graphical representation of data, data structures, data base searching and retrieval, computer aided design, graphic control systems, network design, computer art, computer animation, graphic software, and graphic hardware.
Menu selection is an often used type of human-computer dialogue. However, there is little data on the effectiveness, efficiency or merits of this technique. This paper describes an experiment designed to compare the u...
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ISBN:
(纸本)0444877738
Menu selection is an often used type of human-computer dialogue. However, there is little data on the effectiveness, efficiency or merits of this technique. This paper describes an experiment designed to compare the utility of recently published intuitively derived techniques relating to the syntax of menu interaction with more conventional menu techniques. This experiment is a complex problem solving task which involves retrieving a number of related items from a data-base using a menu dialogue. Subjects will be presented with a task for which they must access, interpret and relate information from several different pages of a Viewdata-like database. Traversal paths and time taken to achieve the goal, are monitored, to provide data with which to assess the effectiveness of the menu syntax.
An interactivecomputergraphics approach for evaluating control systems for manipulator robots is described. The approach is used to assess the needs for implementation of sophisticated control techniques as function...
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An interactivecomputergraphics approach for evaluating control systems for manipulator robots is described. The approach is used to assess the needs for implementation of sophisticated control techniques as function of the manipulated-object (target) dynamics and the degrees of freedom of the manipulator. The assessed control system employs the line of sight (LOS) guidance technique that are widely used in aerospace control systems.
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